Uses new Rust 2021
|1.0.1||Jan 28, 2022|
|1.0.0||Nov 12, 2021|
#218 in Build Utils
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Used in buildid
buildid: get the buildid from your (running) library or executable
build-id is a value which is guaranteed to change when any of the component objects of a binary
change. A change in the build-id does not guarantee that the executable or it's components are
actually different. Two distinct executables may have a different build-id if they were
modified after linking (for example, by
chrpath or similar).
build-id is intended to be sufficient to identify the appropriate debug information to use for
a given object, and is used for this purpose by
gdb and other debuggers.
build-id is also used by
mesa as a key component in their caching of shaders (changes in the
build-id cause the cache to be discarded).
Executables and shared objects contain build-ids. Using
buildid::build_id() will return the
build-id for the object that includes
buildid (this crate). For example, if you write a
shared object (shared library) using this crate, and provide a way to get the build-id in it's
external API, that call will return the build-id of the shared object/library (not the
By default, the
buildid crate will pick the best build-id lookup function it can for your
platform. If one is not avaliable, it may fail to compile. If you have a custom build-id lookup
mechanism you want to tell
buildid about, enabling one of the features may help.
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